CN109068146A - A kind of live broadcasting method of large-scale activity - Google Patents
A kind of live broadcasting method of large-scale activity Download PDFInfo
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- CN109068146A CN109068146A CN201810982450.3A CN201810982450A CN109068146A CN 109068146 A CN109068146 A CN 109068146A CN 201810982450 A CN201810982450 A CN 201810982450A CN 109068146 A CN109068146 A CN 109068146A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/21805—Source of audio or video content, e.g. local disk arrays enabling multiple viewpoints, e.g. using a plurality of cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of live broadcasting methods of large-scale activity, comprising the following steps: step 1, voice scheduling center carries out voice scheduling to video and audio acquisition device respectively；Step 2, video and audio acquisition device will acquire video and audio-frequency information is sent to its corresponding code device；Step 3, code device at IT signal and sends 4G wireless communication device for the television audio signal encoder received；Step 4, wireless device sends cloud instructor in broadcasting's platform for the IT signal received by it respectively by wireless network；Step 5, cloud instructor in broadcasting platform receives multiple IT signals, then received multiple IT signals carry out to timing code is synchronous, decode, cut and broadcast and recode, and is then broadcasted by network live content；Step 6, terminal receives IT signal, and IT signal is decoded into video/audio signal by terminal.The present invention has the advantages that at low cost and difficulty is small, can be broadcast live more flexible with effectively save manpower.
Description
Technical field
The present invention relates to network technique field more particularly to a kind of live broadcasting methods of large-scale activity.
Background technique
When holding large-scale activity or race, it usually needs whole live streaming is carried out to activity or race, existing
In live broadcasting method, it usually needs arrange position for video camera at the scene in advance, and each position for video camera is wiredly connected to respectively and is led
Platform is broadcast, the time that will lead to live streaming in this way is long, difficulty is big, manpower at high cost and needing is more, the position for video camera of arrangement
More, cost and difficulty are bigger, and if city is routed, can also there is some potential safety problems, once route goes out
Damage, which can also directly result in live streaming, to be carried out.
Summary of the invention
It is an object of the invention to propose a kind of live broadcasting method of large-scale activity, to solve the above problems.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of live broadcasting method of large-scale activity, including voice scheduling center, communicator, video and audio acquisition device, coding
Device, 4G wireless communication device, cloud instructor in broadcasting platform and terminal, the video and audio acquisition device are one or more, each described
Video and audio acquisition device respectively corresponds a communicator, a code device and a 4G wireless communication device；It is each
The communicator is wirelessly connected with the voice scheduling center respectively, the output end difference of each video and audio acquisition device
The input terminal of the corresponding code device connects, the corresponding 4G channel radio of the output end of the code device
T unit connection, each 4G wireless communication device are wirelessly connected to internet respectively, and the terminal is connect with internet, institute
State live broadcasting method the following steps are included:
Step 1, the voice scheduling center carries out voice communication with each communicator simultaneously, to each video and audio
Acquisition device carries out voice scheduling respectively；
Step 2, each video and audio acquisition device acquires video and audio-frequency information respectively, and it is corresponding to be subsequently sent to its
Code device；
Step 3, each code device, then will be described respectively by the television audio signal encoder received at IT signal
IT signal is sent to the corresponding 4G wireless communication device；
Step 4, each wireless device is respectively sent the IT signal received by it to by wireless network
The cloud instructor in broadcasting platform；
Step 5, the cloud instructor in broadcasting platform receives multiple IT signals, then believes received multiple IT
It is synchronous number to carry out timing code, each IT signal is then decoded into video/audio signal respectively, then user may be selected to cut and broadcast
To one of video/audio signal channel, the video/audio signal of the audio channel and video channel is re-encoded as by cloud instructor in broadcasting platform
IT signal, and broadcasted by network；
Step 6, the terminal receives the IT signal, and the IT signal is decoded into video/audio signal by the terminal.
It is connected between the voice scheduling center and multiple communicators by voice link, the voice scheduling center is
Full-duplex communication is respectively adopted between the voice scheduling center and multiple communicators in the master control side of multipartite voice call.
Multiple 4G modules are configured in the 4G wireless communication device, each 4G module carries out nothing with internet respectively
Line communication, multiple 4G modules carry out communicating wireless signals simultaneously.
Multiple 4G modules correspond to multiple network operators, and each 4G module distinguishes corresponding network operation
The base station of quotient carries out wireless communication.
In the step 3, each code device is according to video encoding standard H.264 or H.265 to the view
Audio signal is encoded respectively.
Detailed description of the invention
The present invention will be further described for attached drawing, but the content in attached drawing does not constitute any limitation of the invention.
Fig. 1 is the flow diagram of the one of embodiment of the present invention.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
A kind of live broadcasting method of the large-scale activity of the present embodiment, as shown in Figure 1, include voice scheduling center, communicator,
Video and audio acquisition device, code device, 4G wireless communication device, cloud instructor in broadcasting platform and terminal, the video and audio acquisition device are
One or more, each video and audio acquisition device respectively correspond a communicator, a code device and one
4G wireless communication device；Each communicator is wirelessly connected with the voice scheduling center respectively, each video and audio
The output end of acquisition device distinguish the corresponding code device input terminal connection, the output end of the code device with
Its corresponding described 4G wireless communication device connection, each 4G wireless communication device are wirelessly connected to internet respectively, institute
Terminal is stated to connect with internet, the live broadcasting method the following steps are included:
Step 1, the voice scheduling center carries out voice communication with each communicator simultaneously, to each video and audio
Acquisition device carries out voice scheduling respectively；
Step 2, each video and audio acquisition device acquires video and audio-frequency information respectively, and it is corresponding to be subsequently sent to its
Code device；
Step 3, each code device, then will be described respectively by the television audio signal encoder received at IT signal
IT signal is sent to the corresponding 4G wireless communication device；
Step 4, each wireless device is respectively sent the IT signal received by it to by wireless network
The cloud instructor in broadcasting platform；
Step 5, the cloud instructor in broadcasting platform receives multiple IT signals, then believes received multiple IT
It is synchronous number to carry out timing code, each IT signal is then decoded into video/audio signal respectively, then user may be selected to cut and broadcast
To one of video/audio signal channel, the video/audio signal of the audio channel and video channel is re-encoded as by cloud instructor in broadcasting platform
IT signal, and broadcasted by network；
Step 6, the terminal receives the IT signal, and the IT signal is decoded into video/audio signal by the terminal.
During entire live streaming, each video and audio acquisition device is utilized respectively wireless network for the collected video and audio of institute
Information, to cloud instructor in broadcasting's platform, so being not necessarily to arrange route at the scene in advance, can greatly reduce preparation by the Internet transmission
Work reduces live streaming cost, and the setting of video and audio acquisition device is not limited by route, can arbitrarily increase or decrease view sound
The quantity of frequency acquisition device, very flexibly；Cloud instructor in broadcasting platform the IT signal that receives can be carried out synchronous timing code, decoding,
It cuts and broadcasts and recode, then live content is published on internet, compared to the instructor in broadcasting's platform for using entity, cloud instructor in broadcasting's platform
It is lower that cost is broadcast live, and can be remotely operated, the convenience used is more preferably；Cloud instructor in broadcasting platform is to received IT signal
It carries out timing code and synchronizes and multiple video/audio signals can be subjected to time synchronization, avoid prolonging in live video when broadcasting
Late；The terminal of user can log in internet at any time to watch the live content；It voice scheduling center can be with each video and audio
The operator of acquisition device carries out voice communication, when needing to be adjusted to the position of some video and audio acquisition device or angle
When, can the operator at any time with the video and audio acquisition device link up, keep the video and audio acquisition device available appropriate
Adjustment so that live streaming better effect.
It is connected between the voice scheduling center and multiple communicators by voice link, the voice scheduling center is
Full-duplex communication is respectively adopted between the voice scheduling center and multiple communicators in the master control side of multipartite voice call.
Being connected between voice scheduling center and multiple communicators by voice link can be with compared to data link connection
Voice communication experience with more high definition, avoid due to converse it is unclear and to voice scheduling center and video and audio acquisition device
Communication between operator is made troubles；Voice scheduling center can control double-talk as master control side, Ke Yijin
Row carries out taboo speech to a certain communicator, increases the operation such as communicator and reduction communicator, communicator can be as needed
It is added or exits multi-party call；Being made using full-duplex communication can between voice scheduling center and the operator of video and audio acquisition device
To be answered and be talked with simultaneously, communication efficiency is improved.
Multiple 4G modules are configured in the 4G wireless communication device, each 4G module carries out nothing with internet respectively
Line communication, multiple 4G modules carry out communicating wireless signals simultaneously.
During carrying out HD video live streaming, the data volume for needing to transmit is larger, and configuring multiple 4G modules can fold
Plus signal, multiple 4G modules carry out signal transmission simultaneously, can effectively solve jitter during single 4G module transfer
The slower problem with transmission speed, multi-chain circuit transmission have higher stability and transmission rate, keep the clarity of live streaming higher,
It is delayed smaller.
Multiple 4G modules correspond to multiple network operators, and each 4G module distinguishes corresponding network operation
The base station of quotient carries out wireless communication.
, can at intervals between two neighboring base station since the same network operator is when arranging base station, institute
Can there are some signal blank spaces between two base stations, cause using the network operator 4G module can not with base station into
Row connection can cause tremendous influence to live streaming quality in this way, in order to avoid the problem, so needing in 4G wireless communication device
The 4G module of the middle multiple network operators of configuration；When one of network operator can not provide 4G network, other networks fortune
The 4G module of battalion quotient can also carry out signal transmission, keep the network of live streaming more stable.
In the step 3, each code device is according to video encoding standard H.264 or H.265 to the view
Audio signal is encoded respectively.
Using video encoding standard H.264 or H.265 to the collected audiovisual information of video and audio acquisition device institute into
Row coding, audiovisual information, which carries out coding according to video encoding standard H.264 and H.265, can have higher compression ratio,
It can achieve to reduce and obtain preferable picture quality and effect that low bandwidth image quickly transmits under storage volume, greatly reduce 4G
The volume of transmitted data of wireless communication module, the workload with 4G wireless communication module is small, and the Internet resources occupied are few, net
The low advantage of network rate, can be in the cost for guaranteeing to reduce live streaming in the case where quality is broadcast live.
Embodiment 1 is broadcast live marathon race scene:
Pre race prepares: command centre being arranged in the office of live media, voice scheduling is centrally disposed in live streaming
In the office of media, command centre can be scheduled in-situ match, and the server of command centre and cloud instructor in broadcasting platform is logical
Internet connection is crossed, instructor in broadcasting is carried out to the content of live broadcast；Arrange 42 video cameras on the way on the route of marathon race
Position, each position for video camera include a video camera, an encoder and a 4G radio transmitting device, the output end of video camera with
The input terminal of encoder connects, and the output end of encoder is connect with 4G radio transmitting device, and 3 are equipped in 4G wireless transport module
6 4G modules of network operator, every two 4G module use network provided by the same network operator, 4G wireless transmission
Device is connected through the internet to the server of cloud instructor in broadcasting's platform, and each position for video camera is equipped with a cameraman, and every camera shooting
Teacher is furnished with a communicator with it, and communicator can be mobile phone, and each communicator is respectively turned on voice scheduling center,
Voice scheduling center can carry out voice communication with each cameraman respectively.
Match live streaming process: every cameraman in race circuit respectively shoots in-situ match, every video camera
The video and audio taken by it is transferred to respectively and is connected thereto on encoder, encoder is by the video/audio signal received by it
It is encoded according to video encoding standard H.265, and is transmitted the video/audio signal after coding by 4G wireless communication device
Onto the server of cloud instructor in broadcasting's platform, cloud instructor in broadcasting platform carries out timing code to the multiple video/audio signals received and synchronizes, and makes each
The time of a video and audio is consistent, and is then decoded to video/audio signal, and shows image and play audio, commands at this time
Center cut broadcasting in the content taken by all positions for video camera, and be recompiled the content broadcast is cut, and
It is published on internet；When some position for video camera needs to adjust shooting angle or some sportsman of track up, command centre
Communication scheduling can be carried out by voice scheduling center and one or more cameraman, cameraman is then according to the requirement of command centre
The position for adjusting video camera and angle are to reach corresponding shooting effect.
User comes to matches: user is connected to the media by terminal through internet such as mobile phone or computers during live streaming
Server can watch the live streaming.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (5)
1. a kind of live broadcasting method of large-scale activity, which is characterized in that including voice scheduling center, communicator, video and audio acquisition
Device, code device, 4G wireless communication device, cloud instructor in broadcasting platform and terminal, the video and audio acquisition device are one or more,
Each video and audio acquisition device respectively corresponds a communicator, a code device and a 4G wireless communication dress
It sets；Each communicator respectively with the voice scheduling center be wirelessly connected, each video and audio acquisition device it is defeated
Outlet distinguishes the input terminal connection of the corresponding code device, corresponding described of the output end of the code device
The connection of 4G wireless communication device, each 4G wireless communication device are wirelessly connected to internet, the terminal and interconnection respectively
Net connection, the live broadcasting method the following steps are included:
Step 1, the voice scheduling center carries out voice communication with each communicator simultaneously, acquires to each video and audio
Device carries out voice scheduling respectively；
Step 2, each video and audio acquisition device acquires video and audio-frequency information respectively, is subsequently sent to its corresponding coding
Device；
Step 3, then each code device is believed the IT respectively by the television audio signal encoder received at IT signal
Number it is sent to the corresponding 4G wireless communication device；
Step 4, each wireless device is respectively sent the IT signal received by it to by wireless network described
Cloud instructor in broadcasting's platform；
Step 5, the cloud instructor in broadcasting platform receives multiple IT signals, then by received multiple IT signals into
Row timing code is synchronous, each IT signal is then decoded into video/audio signal respectively, then user, which may be selected to cut, is multicast to it
In a video/audio signal channel, cloud instructor in broadcasting platform by the video/audio signal of the audio channel and video channel be re-encoded as IT believe
Number, and broadcasted by network；
Step 6, the terminal receives the IT signal, and the IT signal is decoded into video/audio signal by the terminal.
2. a kind of live broadcasting method of large-scale activity according to claim 1, which is characterized in that the voice scheduling center with
It is connected between multiple communicators by voice link, the voice scheduling center is the master control side of multipartite voice call, described
Full-duplex communication is respectively adopted between voice scheduling center and multiple communicators.
3. a kind of live broadcasting method of large-scale activity according to claim 1, which is characterized in that the 4G wireless communication device
Interior to be configured with multiple 4G modules, each 4G module is carried out wireless communication with internet respectively, and multiple 4G modules carry out simultaneously
Communicating wireless signals.
4. a kind of live broadcasting method of large-scale activity according to claim 3, which is characterized in that multiple 4G modules are corresponding
The base station of multiple network operators, each 4G module corresponding network operator respectively carry out wireless communication.
5. a kind of live broadcasting method of large-scale activity according to claim 1, which is characterized in that each in the step 3
The code device encodes the video/audio signal according to video encoding standard H.264 or H.265 respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810982450.3A CN109068146A (en) | 2018-08-27 | 2018-08-27 | A kind of live broadcasting method of large-scale activity |
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| CN201810982450.3A CN109068146A (en) | 2018-08-27 | 2018-08-27 | A kind of live broadcasting method of large-scale activity |
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Cited By (2)
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| CN111629219A (en) * | 2020-04-10 | 2020-09-04 | 上海文化广播影视集团有限公司 | Multi-party interaction and live broadcast control system and control method |
| CN112351294A (en) * | 2020-10-27 | 2021-02-09 | 广州赞赏信息科技有限公司 | Method and system for frame synchronization among multiple machine positions of cloud director |
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